linux-kernel - Re: [PATCH resend 5/5] libata-scsi: fix MODE SELECT translation for Control mode page

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Message-ID: <20160721212600.GF23759@htj.duckdns.org>
Date:	Thu, 21 Jul 2016 17:26:00 -0400
From:	Tejun Heo <tj@...nel.org>
To:	tom.ty89@...il.com
Cc:	hare@...e.de, sergei.shtylyov@...entembedded.com, arnd@...db.de,
	sfr@...b.auug.org.au, linux-ide@...r.kernel.org,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-next@...r.kernel.org
Subject: Re: [PATCH resend 5/5] libata-scsi: fix MODE SELECT translation for
 Control mode page

On Fri, Jul 22, 2016 at 02:41:54AM +0800, tom.ty89@...il.com wrote:
> @@ -3854,6 +3852,8 @@ static unsigned int ata_scsi_mode_select_xlat(struct ata_queued_cmd *qc)
>  		if (ata_mselect_control(qc, p, pg_len, &fp) < 0) {
>  			fp += hdr_len + bd_len;
>  			goto invalid_param;
> +		} else {
> +			goto skip; /* No ATA command to send */

Hmmm... I'm a bit confused.  Why is mselect_control path different
from mselect_caching in terms of qc handling?

Thanks.

-- 
tejun